Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Dialcode tem uma localização em Edmonton?
 ###Tabelas: CREATE TABLE  (_id AUTO_INCREMENT PRIMARY KEY, Location VARCHAR, Londonborough VARCHAR, Post town VARCHAR, Postcodedistrict VARCHAR, Dialcode VARCHAR) CREATE TABLE wac_men's_basketball_tournament_results (wac_men's_basketball_tournament_results_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winner VARCHAR, Score VARCHAR, Opponent VARCHAR, Venue VARCHAR) CREATE TABLE federal_representation (federal_representation_id AUTO_INCREMENT PRIMARY KEY, Federal State VARCHAR, Number of Members INT, % Of total Members VARCHAR, Population (on the census also called Censo 2010) VARCHAR, % Of the population (Censo 2010) VARCHAR, Representativeness (Inhabitants / Mr) VARCHAR, Representatives of national average VARCHAR, Deputies required ignoring the limits INT) CREATE TABLE list_of_boxing_septuple_or_seven_division_champions_—_major_titles (list_of_boxing_septuple_or_seven_division_champions_—_major_titles_id AUTO_INCREMENT PRIMARY KEY, Number INT, Name VARCHAR, Titles VARCHAR, Date VARCHAR, Opponent VARCHAR, Result VARCHAR, Defenses INT) CREATE TABLE list_of_ministers_for_small_business (list_of_ministers_for_small_business_id AUTO_INCREMENT PRIMARY KEY, Order INT, Minister VARCHAR, Party affiliation VARCHAR, Prime Minister VARCHAR, Term start VARCHAR, Term end VARCHAR, Term in office VARCHAR)  
SELECT Dialcode FROM  WHERE Location = edmonton